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PATENTED FEB. 2, 1 904.

A'. B. BATEMAN. FLY OUTLET FOR SCREENS.

APPLICATION FILED MAY 27, 1903.

N0 MODEL.

. Unveutoz fifth 'uy aiiemaw UNITED STATES Patented February 2, 1904.

PATENT OFFICE.

FLY-OUTLET FOR SCREENS.

SPECIFICATION forming part of Letters Patent No. 751,043, dated. February 2, 1904.

Application filed May 27, 1903. Serial No. 158,989. (No model.)

To all whmn it may concern.-

Be it known that I, ARTHUR B. BATEMAN, a citizen of the United States, residing at Washington, District of Columbia, have invented certain new and useful Improvements in Fly- Outlet-s for Screens; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in a window or door screen outlet for flies. Heretofore in outlets and traps of this character the screen-opening led into a conical guideway the small end or apex of which opened into a suitable trap or receptacle. In all such structures the sole protection against return of the flies to the screen from the trap resided in the small apex-opening of the conical guideway; but none of such traps with which I am familiar provided any means to prevent the flies from returning through the screen-opening from the guideway before entering the trap. My invention therefore comprehends means to prevent as far as possible the escape from the guideway, such means comprising a guard-plate of nearly the same superficial area as the screen-opening.

The invention will be described in detail in connection with the accompanying drawings and then pointed out in the claims.

Figure 1 of the drawings is a view in elevation showing my improved device applied to a screen. Fig. 2 is an enlarged transverse central section of the same. Fig. 3 is a rear elevation of the same, the trap proper being omitted. Fig. 4 is an enlarged sectional detail illustrating the means for supporting the trap proper.

Referring to the drawings, 1 represents a door or window screen in which a suitable opening 2 is cut.

3 represents a flange of a metal screen-band secured to the screen contiguous the opening 2 and having an outwardly-projecting wall 4.

5 represents the guideway, being a cone, preferably of screen-cloth, with the apex extending outward and formed with a small opening 6. The mouth of the cone is secured to a flange 7 of a metal band 8, the wall 9 of which is of a size to singly embrace the wall 4 of band 3, a screw-thread connection 10 preventing the accidental displacement of the parts. The wall 9 of band 8 (hereinafter termed the cone-band) has a lateral flange 11 at its inner end designed when the parts are in place to fit against flange 3 of the screen-band, but on the opposite side of screen 1, it being understood that the flanges 3 and 11 singly embrace the screen 1, but that said flange 3 only is secured thereto. The flange 11 is. formed at diametrically opposite points with ears 12, preferably integral with the flange and designed to receive the wire edges 13 of the trap proper, 14, which edges are sprung into the.

ears 12 and then supported in proper relation to the cone-guideway 5.

15 represents what I term a guard-plate, having a thin solid metal plate of slightly less superficial area than the area of screen-opening 2, so as to leave a narrow way 16, surrounding the edge of said plate, to afford entrance for flies or the like. Spring-fingers 17, preferably of wire, secured to plate 15, are designed to frictionally engage wall 4 of the screen-band to hold the guard plate removably in place.

The parts being assembled as above described, and illustrated in the drawings, it will be seen that the flies will enter the 'guideway 5 through the entrance-way 16 around the guide-plate and thence out the apex-opening 6 into a trap proper, 14.

I regard the guard-plate 15 as of great importance in articles of this class, as it tends by closing a large part of the screen-opening to prevent the return of flies-from the guideway before they have passed through the apex-opening 6, and therefore as this plate is solid and the guideway and trap proper of screen-cloth it will be noticed that the return path of the flies is comparatively dark, while the opposite direction is made lighter, thereby aiding in attracting the flies to the trap 14.

I do not desire to be understood as including the trap proper as an essential part of my structure, as the flies may be allowed to escape through the apex-opening 6, as the main object of course is to clear the room of flies.

The trap proper may be readily removed alone by disengaging the edges 13 from the ears 12, or the trap and cone-guideway may be removed together by a simple turn of the parts necessary to disengage the threaded connection 10 of walls 4 and 9, when the cone-band 8 and cone-guideway and trap proper may all be removed from the screen for cleaning or renewal. The guard-plate is simply held in place by the spring-fingers 17 and may be readily removed or replaced, as desired.

Having thus described my invention, what I claim is' 1. In combination with a screen having an opening formed therein, of a screen-band encircling said opening, a cone-band adapted for removable connection with the screen-band, and formed with a flange to coact with the screen-band to embrace the screen, and a coneguideway supported by said cone-band.

2. In combination with a screen having an opening formed therein, of a cone-guideway leading from said opening, and a guard-plate partially closing said opening, said guardplate lying wholly within the opening and flush with the surface of the screen.

3. In combination with a screen formed with an opening, of a screen-band encircling said opening, a cone band adapted for screwthreaded connection with the screen-band, a cone-guideway supported by the cone-band, and a trap proper surrounding the cone-guide- Way and removably secured to the cone-band.

4. In combination with a screen having an opening formed therein, and a screen-band encircling said opening, of a cone-guideway supported by said screen-band and a guard-plate partially closing said screen opening, said guard-plate being removably supported by the screen-band.

5. In combination with a screen having an opening and a screen-band encircling said opening, of a cone-guideway supported by said screen-band, and a guard-plate partially closing said screen-opening, said guard-plate being of solid metal and removably supported by the screen-band flush with the surface of the screen.

6. In combination with a screen having an opening formed therein, of a screen-band encircling said opening, a cone-guideway leading from the opening, a guard-plate partially closing the opening, and spring-fingers projecting from the guard-plate to engage the screen-band.

7 A fiy-outlet designed for use with a screen, comprising a screen-band to encircle an opening in the screen, a cone-band adapted for removable connection with the screenband, a cone-guideway secured to the coneband, and a guard-plate removably secured to and lying wholly within the screen-band.

In testimony whereof I afiix my signature in presence of two witnesses.

ARTHUR B. BATEMAN.

Witnesses:

D. W. GOULD, FRANK D. BLACKISTONE. 

